According to the CBS news dated 3/7/2014, the researchers studied 44,400 breast cancer women’s vitamin D (25-hydroxyvitamin D) level in the blood. “Patients with high levels of Vitamin D in their blood were twice as likely to survive the disease than women with low levels of the nutrient,” said the article.

The researchers reported that Vitamin D could block the aggressive cancer cell division and stop cancer growing. They recommended to add Vitamin D to chemotherapy.

The best source of vitamin D is the sunlight, but they say that fatty fish like tuna, fortified milk, and even oranges are good sources of vitamin D, also.

It depends on the level of vitamin D in the blood how much we should take as a supplement, but I was recommended 2000IU/day. I was taking only 400IU/day, so it was way too little. Increasing the dose, now I may be able to improve all my muscle problems and even make the new regimen more powerful! Thank you Doctor!